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GAI to LGW: distance & flight time
Gaithersburg (Montgomery County Airpark) → London (London Gatwick Airport)
3,664 mi
5,896 km · 3,184 nm
7h 39m
estimated nonstop flight time
+5h
time difference · heading northeast
See live GAI→LGW fares Phone-only fares on this route — call free
Flight time details
3,664 miles nonstop takes roughly 7h 39m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- GAI — Montgomery County Airpark · Gaithersburg, United States
- LGW — London Gatwick Airport · London, United Kingdom
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near GAI
Near LGW
- LHR · London Heathrow Airport25 mi away
- KRH · Redhill Aerodrome5 mi away
- BQH · London Biggin Hill Airport16 mi away
- ESH · Shoreham Airport22 mi away
Frequently asked questions
How far is GAI from LGW?
The flight distance from Gaithersburg (GAI) to London (LGW) is 3,664 miles (5,896 km, 3,184 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to LGW?
A nonstop flight takes about 7h 39m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Gaithersburg and London?
London is 5 hours ahead of Gaithersburg.
What is the cheapest way to fly from GAI to LGW?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–LGW that never appear on search engines, with no booking fees.